Search Service not working - SharePoint 2010

Question

When running search service I get the below

We did not find any results

In central administration – Manage content databases I can see under Database name, search server drop down point at correct server.

In central administration – Services on server

I can see both

SharePoint Foundation Search
SharePoint Server Search

started.

I can see crawl is enabled.

Central admin – application management – service applications – Manage service applications Search Service Application is here Crawl status = online for crawling I can see under crawl history regular crawls taking approximately 3:30 mins.

Error messages all seem to be the same Error HRESULT E_FAIL has been returned from a call to a COM component. ( Error from SharePoint site: Cannot complete this action. Please try again. )

I have tried following the below

Search Error HRESULT E_FAIL has been returned from a call to a COM component

But it did not resolved issue

(Crawl is set to run every night at 10pm)

Answer 1

1. try to recycle the application pool where search is running.

2. If your search servise is running under domain account (as should be), go to Windows services; find SharePoint Server Search 14 Service (OSearch14) and in properties "Log On" tab provide the correct password and restart the service.

Answer 2

Restarting the Windows-Services SharePoint Search Host Controller and SharePoint Server Search 15 solved this problem for me.

I had to perform a full-crawl after service-restart because i cancelled a previously hanging incremental-crawl.